Timedora

AP Biology Online Course

A comprehensive molecular and ecological study covering cell structure, energetic processes, genetics, gene expression, natural selection, and ecosystems. Extensive inquiry-based laboratory work is integrated to reinforce biological theories.

Study Tools

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Study guides

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11. Populations, Communities, and Ecosystems

A structured guide to population dynamics, community interactions, biodiversity, energy flow, and succession across ecological levels.
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10/12 10: Evolution by Natural Selection

A progressive guide to evolution by natural selection, including evidence for common ancestry, population change, adaptation, speciation, phylogenetic reasoning, and evidence-based investigations.
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06/12 Photosynthesis and Biological Energy Capture

A structured guide to how photosynthetic organisms capture light, generate ATP and NADPH, fix carbon, and adapt photosynthesis to environmental conditions.
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04/12 04 Membranes, Transport, and Cellular Communication

A progressive guide to how membrane structure controls permeability, how gradients and energy drive transport, and how cells receive, amplify, and terminate signals.
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03 Cell Structure and Organization

A structured guide to cell theory, microscopy, prokaryotic and eukaryotic organization, organelle functions, membrane structure, cellular comparisons, and evidence-based microscopy investigations.
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05 Energy, Enzymes, and Cellular Respiration

A structured guide to enzyme regulation, ATP and electron transfer, cellular respiration, fermentation, and quantitative experiments on energy transformations.
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08 Genetics and Inheritance

A structured guide to genes, Mendelian inheritance, probability, pedigrees, inheritance patterns, genetic variation, and reliable methods for solving genetics problems.
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09 Molecular Genetics and Gene Expression

A guided explanation of how DNA stores and copies information, how genes are expressed and regulated, how mutations affect biological function, and how biotechnology investigates or modifies genetic material.
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07/12 Cell Reproduction and Meiosis

A structured guide to chromosome organization, the cell cycle, mitosis, meiosis, and the mechanisms that create genetic variation.
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12. Ecosystem Dynamics and Conservation

A progressive guide to how ecosystems function, how energy and matter move through them, how human pressures alter them, and how evidence-based conservation can support resilience.
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02/12 02 Chemistry of Life

A progressive guide to how atoms, chemical interactions, water, pH, and biological macromolecules determine the structure and function of living systems.
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01/12 01 Foundations of Biology and Scientific Inquiry

A progressive guide to the foundations of biology, scientific reasoning, experimental design, measurement, data interpretation, laboratory safety, and scientific communication.
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Quizzes

12

08 Genetics and Inheritance

A 14-question quiz on genetics and inheritance, progressing from foundational concepts to applied probability, inheritance-pattern analysis, and explanation of genetic variation.
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Evolution by Natural Selection

A medium-difficulty quiz on evolution by natural selection, evidence for evolution, population change, speciation, and phylogenetic reasoning. Questions emphasize applying concepts to biological situations and interpreting evolutionary evidence.
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09 Molecular Genetics and Gene Expression

A 14-question quiz on molecular genetics and gene expression, covering DNA structure and replication, transcription and translation, gene regulation, mutation effects, biotechnology, genome editing, and experimental reasoning. Questions progress from foundational understanding to integrated application.
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12. Ecosystem Dynamics and Conservation

A 14-question assessment on ecosystem dynamics and conservation, emphasizing energy and matter, biogeochemical cycles, productivity, human impacts, conservation strategies, and evidence-based management.
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06/12 Photosynthesis and Biological Energy Capture

A medium-difficulty quiz on photosynthesis and biological energy capture, covering chloroplast organization, light-dependent reactions, carbon fixation, adaptations, limiting factors, and experimental interpretation.
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11. Populations, Communities, and Ecosystems

A 14-question quiz on populations, communities, biodiversity, ecosystem energy flow, and ecological succession. The questions emphasize interpreting models, applying ecological concepts, and explaining mechanisms.
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07/12 07 Cell Reproduction and Meiosis

A 14-question quiz on cell reproduction, the cell cycle, mitosis, meiosis, chromosome behavior, and sources of genetic variation. The questions progress from foundational recognition to application and comparison.
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03 Cell Structure and Organization

A 14-question quiz on cell theory, microscopy, prokaryotic and eukaryotic organization, membranes, organelles, transport, and evidence-based microscopy investigations. Questions progress from foundational application to more complex analysis.
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Membranes, Transport, and Cellular Communication Quiz

A 14-question assessment on membrane structure, transport mechanisms, osmosis, experimental design, and cellular signaling. Questions progress from foundational application to more complex reasoning.
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05/12 05 Energy, Enzymes, and Cellular Respiration

A medium-difficulty quiz on enzymes, ATP, redox reactions, cellular respiration, fermentation, and quantitative experimental design. The questions progress from core concepts to applied interpretation and experimental reasoning.
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02/12 02 Chemistry of Life

A medium-difficulty quiz on the chemical principles of life, including atoms, molecular interactions, water, pH, biological macromolecules, and experimental applications. The questions emphasize applying concepts to biological situations rather than recalling isolated definitions.
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Foundations of Biology and Scientific Inquiry

A medium-difficulty quiz on the foundations of biology and scientific inquiry. Questions assess biological organization, scientific reasoning, experimental design, measurement, data analysis, safety, ethics, and communication.
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Flashcards

12

11. Populations, Communities, and Ecosystems

A focused review of population ecology, community interactions, biodiversity, energy flow, and ecological succession.
Flashcards · Updated

12. Ecosystem Dynamics and Conservation

A focused set of 14 flashcards covering ecosystem structure, biogeochemical cycles, productivity, human impacts, and conservation strategies.
Flashcards · Updated

04/12 04 Membranes, Transport, and Cellular Communication

Learn how membrane structure, transport mechanisms, osmosis, active transport, and cell-signaling pathways control exchange and communication in cells.
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09/12 09 Molecular Genetics and Gene Expression

A focused review of DNA structure and replication, gene expression, regulation, mutations, and core molecular biotechnology methods.
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08 Genetics and Inheritance

A focused review of genetic concepts, Mendelian inheritance, probability, pedigree patterns, genetic variation, and methods for solving inheritance problems.
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05/12 05 Energy, Enzymes, and Cellular Respiration

A focused review of enzyme function, ATP and electron transfer, cellular respiration, fermentation, and quantitative experiments on energy transformations.
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10/12 10 Evolution by Natural Selection

A focused flashcard activity covering evidence for evolution, natural selection, population change, speciation, and phylogenetic reasoning.
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07/12 07 Cell Reproduction and Meiosis

Review how the cell cycle, mitosis, meiosis, and chromosome behavior support growth, reproduction, and genetic variation.
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01/12 01 Foundations of Biology and Scientific Inquiry

A focused review of biological organization, scientific reasoning, experimental design, measurement, data interpretation, laboratory safety, and scientific communication.
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06/12 Photosynthesis and Biological Energy Capture

A focused set of 14 flashcards covering the structures, reactions, carbon-acquisition strategies, limiting factors, and experimental measurement of photosynthesis.
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03/12 03 Cell Structure and Organization

A focused set of 14 flashcards covering cell theory, microscopy, prokaryotic and eukaryotic organization, organelle functions, membranes, and cellular transport evidence.
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02/12 02 Chemistry of Life

A focused review of the atoms, molecular interactions, water chemistry, pH, reactions, and biological macromolecules that make life possible.
Flashcards · Updated